狀語從句指句子用作狀語時,起副詞作用的句子.它可以修飾謂語、非謂語動詞、定語、狀語或整個句子.
根據其作用可分為時間、地點、原因、條件、目的、結果、讓步、方式和比較等從句.狀語從句一般由連詞引導,也可以由詞組引起.從句位於句首或句中時通常用逗號與主句隔開,位於句尾時可以不用逗號隔開.
考點聚焦
1、時間狀語從句
as、when、while用
as表示當的時候,往往和when/ while通用,但它著重強調主句與從句的動作或事情同時或幾乎同時發生.
She came up as I was cooking.
The runners started as the gun went off.
when:既可以表示在某一點的時候,又可表示在某一段時間內,主句與從句的動作或事情可以同時發生也可以先後發生.
It was raining when we arrived.
When we were at school, we went to the library every day.
while意思是當的時候或在某一段時間裡.主句中的動作或事情在從句中的動作或事情的
進展過程中發生,從句中的動詞一般要用延續性動詞.在when表示a period of time時,兩者可以互換.
Please dont talk so loud while others are working.
He fell asleep while/when reading. Strike while the iron is hot.
引導時間狀語從句的連接詞除上述外還有:
①till, not until , until, before, since
Dont get off the bus until it has stopped.
He waited for his father untilit was twelve oclock.
It will be five years before he returns from England
根據其作用可分為時間、地點、原因、條件、目的、結果、讓步、方式和比較等從句.狀語從句一般由連詞引導,也可以由詞組引起.從句位於句首或句中時通常用逗號與主句隔開,位於句尾時可以不用逗號隔開.
考點聚焦
1、時間狀語從句
as、when、while用
as表示當的時候,往往和when/ while通用,但它著重強調主句與從句的動作或事情同時或幾乎同時發生.
She came up as I was cooking.
The runners started as the gun went off.
when:既可以表示在某一點的時候,又可表示在某一段時間內,主句與從句的動作或事情可以同時發生也可以先後發生.
It was raining when we arrived.
When we were at school, we went to the library every day.
while意思是當的時候或在某一段時間裡.主句中的動作或事情在從句中的動作或事情的
進展過程中發生,從句中的動詞一般要用延續性動詞.在when表示a period of time時,兩者可以互換.
Please dont talk so loud while others are working.
He fell asleep while/when reading. Strike while the iron is hot.
引導時間狀語從句的連接詞除上述外還有:
①till, not until , until, before, since
Dont get off the bus until it has stopped.
He waited for his father untilit was twelve oclock.
It will be five years before he returns from England
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